Announcements City of Champlin’s Fall Leaf Clean-Up Event Published October 17, 2013 at 12:00 am Girl scouts Jewel Laney (left) and Elenor Martinson (right) help their community by raking leaves at the Champlin Leaf Clean up event held Tuesday, Oct. 8. Many gathered to help rake leaves at Mississippi Point Park and Josephine Nunn Park to rake leaves to protect the water quality of rivers and creeks. Pictured above are girl scouts holding the poster for the Fall Leaf Clean-up event. When grass and leaves travel to waterways and though storm drains, phosphorus is created by the decaying leaves, turning water green with algae. This depletes oxygen levels in the water making it difficult for fish and other aquatic animals to survive.